PSYCO104 Lecture Notes - Lecture 17: Electromagnetic Spectrum, Sclera, Retina

• School: University of Alberta
• Department: Psychology
• Course: PSYCO104
• Professor: Claire Scavuzzo

Document Summary

Decision rules: frequently, perceptual information is incomplete or ambiguous, therefore, stimulus processing from the bottom-up cannot account fully for perception. Top-down decisions also need to be made: hand of god goal, the dress, in both cases, different interpretations where derived from top-down factors. In the case of the dress, lighting conditions. In the case of maradona"s goal, nationality may even have played a role: we are only privy to an incredibly small portion of the electromagnetic spectrum. Despite this limited access, we are able to perceive in environments which differ. Controls size of pupil and gives eye colour. Pupil opening at the centre of the iris (dilates/constricts) Retina light-sensitive cells at the back of the eye center periphery. 120 mil per eye: the relative activity of these three pigments explain secondary colours. Dichromates only have two of the three cones (g versus r): we have fewer b cones than g or r cones.